Refinancing strategy 2026: Planning your mortgage renewal
Your fixed-rate period is ending and you're wondering how to approach your mortgage refinancing? After the turbulent interest rate years of 2022-2024, many landlords face this decision. The right strategy can save you thousands – or cost you dearly.

Denise Sonnenschein
09.04.2026
Understanding the new interest rate plateau
After the dramatic interest rate increases of recent years, the market has stabilized at a significantly higher level. While property loans were available at rates below 1% in 2021, interest rates in 2026 are moving in a corridor between 3.5% and 5.5%.
This new reality particularly affects landlords whose fixed-rate periods from the low-interest phase are expiring. Those who financed in 2016 or 2017 and chose a ten-year fixed rate now face the challenge of significantly more expensive refinancing.
The good news: With the right strategy and early planning, you can make the best of the situation. Those who think ahead have more options than those who become active only six months before expiration.
In Germany, most mortgage loans come with a "Zinsbindung" (fixed-rate period), typically 5-15 years. During this time, your interest rate remains constant. When this period expires, you need "Anschlussfinanzierung" (follow-up financing) for the remaining loan balance.
Timing is everything: When to take action
Planning your refinancing ideally begins 12 to 18 months before your current fixed-rate period expires. This timeframe gives you sufficient room for various strategies:
18 months ahead: Start market observation
Begin systematically monitoring interest rate developments. Subscribe to relevant newsletters, follow European Central Bank decisions, and create an overview of current conditions from various providers.
During this phase, you should also analyze your current financial situation. Has your creditworthiness improved since the original financing? Are additional securities available? These factors significantly influence the conditions of your refinancing.
12 months ahead: Make strategic decisions
Now it gets concrete. You've gathered enough data to make an informed decision between different approaches. The most important question is: Forward loan or wait?
Parallel to this, you should begin collecting and updating all documents for bank discussions. Complete documentation of your property and financial circumstances is the foundation for good conditions.
Forward loans: Planning security at a price
A forward loan allows you to fix today's interest rates for a loan that won't be disbursed for up to 66 months. This option offers planning security but has its price.
The mechanics of forward loans
Banks charge a premium on the current interest rate for forward loans. This forward premium compensates for the bank's risk that rates might fall before disbursement. Typical premiums range between 0.01% and 0.03% per month of the forward period.
For a 12-month forward, this means a premium of 0.12% to 0.36% on the current interest rate. You must weigh these costs against potential savings if rates rise.
When forward loans make sense
Forward loans are particularly attractive when you expect rising rates and value planning security higher than the chance of falling rates. Specifically, you should consider a forward loan when:
- You pursue a conservative financing strategy
- Your cash flow planning is based on fixed interest rates
- Interest rate forecasts predominantly expect further increases
- The forward premium is moderate relative to expected rate increases
For landlords with multiple properties, it can make sense to stagger the portfolio: secure part through forward loans, keep the rest flexible.
The waiting strategy: Flexibility with risk
The alternative to forward loans is consciously waiting until shortly before the fixed-rate period expires. This strategy maximizes your flexibility but also brings uncertainty.
Advantages of waiting
Those who wait save the forward premium and can benefit from potentially falling rates. You also remain flexible for alternative financing forms or special repayments that could influence your refinancing.
This strategy is particularly interesting if your property has significantly increased in value. A better loan-to-value ratio can substantially improve interest conditions and amplify the advantage of falling market rates.
Risks of the waiting strategy
The main risk is obvious: If rates continue to rise, your refinancing becomes more expensive than with a forward loan. Additionally, there's the risk that your personal creditworthiness deteriorates or external factors influence financing conditions.
Another aspect is time pressure. Those who start too late have less negotiating room and may have to accept the first available offer.
Optimal preparation for bank discussions
Regardless of your basic strategy, the quality of your preparation largely determines the conditions. Banks evaluate not only your creditworthiness but also the professionalism of your documentation.
Complete property documentation
Compile comprehensive documentation of your property. This includes current rental agreements, utility bill settlements from the last three years, owners' meeting minutes, and all documents regarding major renovations.
Particularly important is a realistic valuation of your property. Obtain multiple market value appraisals or use professional valuation tools. An overly optimistic assessment appears unprofessional; an overly conservative one wastes financing potential.
Create financial transparency
Prepare your income documentation from the last three years. As a landlord, you should additionally be able to present detailed profitability calculations for each property. Show how rental income has developed and what investments you've made.
A professional liquidity plan for the coming years underscores your seriousness. Consider major maintenance or planned renovations.
Obtain multiple offers
Contact at least three different financing partners. Besides your house bank, you should also approach direct banks, building societies, and specialized real estate financiers. Each provider has different focuses and conditions.
Timing is crucial when obtaining offers. Ensure all offers are based on the same interest rate level to compare them fairly.
Negotiation tips for better conditions
Even with standardized interest products, there's room for negotiation. With the right strategy, you can often achieve 0.1% to 0.3% better conditions.
Collect arguments
Your negotiating position depends on several factors:
- Creditworthiness: Improved creditworthiness since original financing is your strongest argument
- Loan-to-value: Has the loan-to-value ratio decreased through repayment or value increases?
- Overall relationship: What volume do you bring to the bank overall?
- Market situation: Are other providers cheaper?
Prepare these arguments systematically and support them with concrete numbers.
Negotiation sequence
Always begin negotiations with alternative providers, not with your house bank. This way, you gather market knowledge and concrete comparison offers. Your existing bank often has the advantage of simplified processes but must match conditions.
Never negotiate only about the interest rate. Additional costs, special repayment rights, and provision periods also influence the total cost of your financing.
Examine alternative financing forms
Traditional bank financing isn't always the best option. Depending on the situation, alternative financing forms can be interesting.
Reactivate building society contracts
Do you have old building society contracts with attractive loan rates? Even if originally not intended for this property, they can serve as refinancing. Building society loans often offer more favorable conditions than current bank loans.
Negotiate seller financing
When selling and simultaneously acquiring another property, seller financing can be interesting. The seller of your previous property grants you a loan for the new acquisition – often at more attractive conditions than available in the market.
Crowdinvesting as supplement
For smaller financing amounts or as a supplement to bank financing, crowdinvesting can be an option. Interest rates are often higher than with banks, but processes are faster and more flexible.
Risk management in refinancing
Thoughtful refinancing considers various risk scenarios and builds corresponding safety buffers.
Minimize interest rate change risk
Consider how long you want to choose the new fixed-rate period. In a high-interest environment, longer fixed-rate periods of ten or 15 years can make sense, even if they're more expensive than shorter terms.
Alternatively, you can split your financing: one part with long fixed rates for security, another part with shorter terms for flexibility.
Plan liquidity reserves
Plan sufficient liquidity reserves for the time after refinancing. Higher interest costs reduce your cash flow while unexpected maintenance or rental defaults can occur.
As a rule of thumb, you should maintain at least three months' rent per property as reserves. For larger portfolios, this buffer can be relatively smaller.
Develop exit strategies
Also think about scenarios where refinancing isn't feasible or economically sensible. Which properties could you sell if necessary? Are there objects suitable for division or other utilization?
These considerations aren't pessimistic but part of professional portfolio strategy.
Frequently Asked Questions
How early should I start planning my refinancing?
The ideal time is 12 to 18 months before your current fixed-rate period expires. This gives you enough time for market observation, strategy development, and negotiations. With forward loans, you can even plan up to 66 months in advance.
Is a forward loan worthwhile at current interest rates?
This depends on your interest rate forecast and risk tolerance. Forward loans make sense when you expect further rising rates and value planning security. The forward premium of about 0.01-0.03% per month must be weighed against expected rate increases.
Can I still get good conditions with worse creditworthiness?
Yes, but preparation becomes even more important. Focus on complete documentation, obtain multiple offers, and examine alternative financing forms. Often additional securities or guarantors can improve conditions.
Should I stay with my previous bank?
Not automatically. While processes are often simpler, conditions aren't necessarily the best. Always obtain comparison offers – this also strengthens your negotiating position with your house bank.
What happens if I can't get refinancing?
This scenario is rare but possible. Options include selling the property, seeking alternative financiers, or partial financing through various sources. Early planning significantly minimizes this risk.
How important is the length of the new fixed-rate period?
Very important for your long-term planning security. In the current interest situation, many landlords tend toward longer fixed-rate periods of ten or 15 years to hedge against further rate increases. This costs slightly more but creates calculation certainty.
Über den Autor
Denise Sonnenschein
Lawyer in rental and property ownership law

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